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mnbjkl
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樓主  發(fā)表于: 2011-11-24 16:46
相同功率的電機，電機極數不同，在額定轉速下，誰(shuí)輸出轉矩大？例如都是11KW電機，一個(gè)4極，一個(gè)8極，在其額定轉速下，誰(shuí)的力矩大。有沒(méi)計算公式，好像是8極的力矩大，電流有什么不同？
niningtt
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1樓  發(fā)表于: 2011-11-24 17:58
轉速與極對數成反比，也就是說(shuō)極對數越大額定轉速越慢（轉差率及電源頻率電壓一致的情況下）。從理論公式 電機的轉矩＝電機的功率X9550/電機的轉速，可以知道電機的轉矩與電機的轉速成反比，也就是與極對數成反比

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